Mowing-machine.



A. MORRIS.

MOWING MAGHINB.

APPLICATION FILED NOV. 30, 1912. 1,1 1 1,081 Patented Sept. 22, 1914.

' 2 SHEETS-SHEET 1.

Zdnesse I l we M@ fw/f@ @y @M @my WA A. MORRIS.

MOWING MACHNE.

APPLICATION FILED NOV. 30, 181% 1,1 l 1,0311 k Patented Sept. 22, 1914.

2 SHEETS-SHEET 2.

g" 52M @y Ams Montare, or I'NnmivoLa, iowa.

LIGHTING-MACHINE.

nui-,oar

Specication of Letters Patent.

rat'catca sept. ae, mit.

Application med November 30, 1912. Serial No. 735,002.

i To olf/whom it may concern.'

Be it known that I, Ams MORRIS, a citizen of the United States, residingat Indianola,

in the .county of Warren and State of Iowa,

have invented a certain new and useful MowingsMachine, of whichthe.fol'lowing is a specification.

The 4object 4of my invention is to provide simple, durable andAinexpensive means for transmitting power from the driving axle of amower to the cutter bar.

More specifically it is my object to provide to prevent `lost motionbetween the intermeshing beveled pinion and gears.

A further object is to provide an improved constructionfor the pitman-whereby the pitman may be thoroughly oiled and protected from dust 'andthe diiiculties incident to lost motion between the pitman and the crankwheel eliminated.

My linvention consists :in certain details, in vthe construction,arrangement and combination od the various parts of the device, whereby.the objects contemplated are attained, as hereinafter more fully setforth, pointed out in my claims, and illustrated in the accompanyingdrawings, in which:

iFigure .1 shows a top or plan view of a part of a mowing machineembodying my invention. `Fig2 shows a sectional view on the line'2-2 ofFig. 1. Fig. 3 showsan enf larged, detail, sectional View illustratingthe :means 4for operating the clutch on the crank :shaft yand lconnectedparts. Fig. 4 showeaa detail view ofthe gearing devices between the`main .axle `and the crank shaft. E1n-this .view some of the parts areillustrated iny cross-section to show-the structural details. Fig'.5-shows a Ifront elevation-of the means for transmitting power f-rom thecrank to the cutterbar. Fig. 6 shows a similar view in'vertical section.Fig. 7 shows a sectional view on the line 7--7 of Fig. 6, and Fig. 8shows a sectional view on the line 8-8 of -eferringto the accompanyingdrawings, I have=usedthe reference numeral 10 to indicatethefmain axleofsa machine having thereon the supporting-wheels l1 provided with theusual ratchet devices '12 between l the Wheels and the'axle. The tongueof themower is indicated by the numeral 13 and the reciprocating cutterbar by the numeral 14. 'lhe crank shaft which is of the ordinaryconstruction is indicated by the numeral 15 and isprovided on itsforward end with a crank wheel 16 having a wrist pin 17.

All of the parts ,before described are .of the ,ordinary constructionand perform the usual function. v

I preferably provide a cast metal .casing indicated enerally bythenumeral 18 for inclosing t e main axle, the crank shaft and the gearingdevices between them. 'llhis casing is also preferably provided with adetachable portion 19 by vwhich access my be had to the gearing devicesvhereinafter de scribed.

For the purpose of transmitting power-to the crank shaft from the axle,l have fixed to the axle an internal gear wheel 20 and also a gear wheel21 havingteeth on its vperiphery and being spaced apart from theinternal gear 20. Mounted in the casing 18 is a stationary shaft 22 onwhich is support ed a hub 23. This hub is provided with a beveled gear24 and a small gear 25, the lat-A "a beveled pinion 29 provided with aclutch member' 30 and slidingly mounted on the crank shaft is a coactingclutch member 31. An arm 32 is connected to the-clutch member 31- and isprojected :through an opening 33 in the casing so that an operator mayengage 5 said arm to manipulate the clutch. The arm 82 is preferablyprovided with a notch clearly shown in Fig. 3 whereby it may besupported in lposition with the two clutch membersin engagement, and itis also provided with a shoulder 34 by which the movable clutch membermay be supported in position out of engagement with the other clutchmember.

lhere are a .number Vof advantages at tained bythe use ofmy improvedgearing devices between the axle and the crank shaft. By having the twobeveled gear wheels 24 and 27 in engagement with opposite sides of thebeveled pinion 29, all tendency for:

lateral movement of the beveled pinion 29 is avoided as the two gearwheels 24 .and 27 firmly hold the pinion 29 and the end of the shaft towhich it is attached against such lateral movement. Furthermore byanarrangement of this kind the gear wheels may be made in the ordinarymanner and the cutter or sickle bar is a casing for the pitman and crankwheel. This casing comprises a cylindrical body portion 35 open at theend toward the sickle bar and having an enlarged portion 36 at itsother'end which inclosed the crank wheel. A detachable member isprovided for the top portion of the casing which is indicated by thenumeral 37, the end of the casing that surrounds the crank wheel beingconnected With the part of the frame 18 adjacent thereto, as Vshown inFig. 1. The said cylindrical casing member 35 is inclined slightlytoward the sickle bar, as clearly shown in Fig. 6.y Fixed in position atabout the central portion of the casing member 35 is a partition 38having a stuffing box 39 at its central portion. Slidingly mountedbetween the partition 38 and the lower end of the casing 35 is a disk 40to whicha pitman member 41 is-pivoted,

the other end of said pitman member being connected to the sickle bai`in the ordinary way. Mounted within the upper portion ofthe casingmember 35 is a perforated disk 42 slidingly mounted and having a pitmanmember 43 fixed to it. This pitman 43 is extended through the stuilingbox 39 and is attached to the disk 40. A third pitman member 44 ispivoted to the disk 42 and is also connected to the wrist pin 17. Ipreferably provide in the casing member 37 a screw plug 45 which may beremoved to insert oil and also a screw plug46 in the casing 35 adj aeentto the partition 38 which maybe .removed to clean out the-casing. Someof the advantages of this part of my improvement are that during thevery 'rapid reciprocation of the disk 42 the oil contained within thecasing is distributed throughout the interior of the casing and tends tominimize friction and to keep all of the parts cool.` For the reasonjust given the connection between the pitman member 44 and the wrist pin17 may be made comparatively tight and free from lost motion' so thatduring the operation ofthe sickle bar there is practically no poundingbetween the pitman member 44 andthe wrist pin .y when at the ends of thepitman members stroke. Furthermore, the entrance o'ldust is preventedwhich also tends to minimize vwear between the working parts.

On account of the `fact that the upper jend'A of the pitman 41 isslidably mounted By means of my improvement ower is ltransmitted to themain axle oft e recip# rocating cutter bar with a minimum 0f frictionand almost noiselessly. Hence the life or durability of the' device isgreatly inf i'cre'ased and all pounding at the ends ofthe pitman strokeis prevented. Furthermore lthe operatory need not stop frequently" forthe purpose of lubricating the connection between the pitman and thecrank wheel asr a comparatively large quantity of lubricat@L ing oil maybe contained within the crank case. 1

I claim as my invention: l

1. In a mowing machine, the combination of an axle, a crank shaft, apinion. onfthe crank shaft, two gear wheels in mesh with thepinion onthe crank shaft and onv opposite sides thereof, and means foroperatively connecting both of the gear wheels with thel main axle torun in opposite directions and at the same speed.-

2. In amowmg machine, the combinationv of a main axle, a crank shaft, abeveled pinion on the 'crank shaft, two beveled pinions in mesh with thebeveled pinion on the crank shaft and on opposite sides thereof, aninternal gear Wheel fixed to the axle, a pinion inV mesh with theinternal gear .and operatively connected with one of the beveled gearWheels, a gear wheel fixed to the axle, a pinion in mesh therewith andoperatively connected with the other of said beveled 'gear wheels, theproportions. of saidv gearing devices being such as to operate vboth thebeveled gear Wheels at the same speed. -v

3. Ina mowing machine,the combination of a main axle, a crank shaft, abeveled in ion on thel crank shaft, two beveled pinlons in mesh with thebeveled pinion on the crank shaft and on opposite sides thereof, an internal gear wheel fixed to the axle, apinion in mesh with the internalgear land operatively connected with one ofthe beveled gear wheels, agear wheel fixed to the axle,

a pinion in mesh therewith and operatively connected with the other ofsaid beveled gear wheels, the proportions of said gearing devices vbeingsuch as to operate both the beveled gear\wheels at the same speed, and aclutch device for the beveled crank shaft. 4. In a mowing machine,.the:combination of a crank shaft, means for rotating it,- a crank wheelthereoma pitman member connected to the crank wheehai sliding. supportlpinion-.on the icoy pivotally connected to the other end of said pitmanmember, a casing in which the sliding support is mounted, said casingbeing provided with an extension for inclosing the crank wheel and thesaid pitman member, a partition in said casing, a .second pitman memberpivotally connected with the sliding member and extended through saidpartition, and a third pitman member pivotally connected with the secondpitman member and designed to be connected to a sickle bar, said'sliding member being provided with openings through which oil may freelypass.

5. ln a mowing machine, the combination of a main frame, a crank shaftrotatably mounted in the main frame, a crank wheel thereon, a crank caseconnected with the main frame and having a part to surround the crankwheel and also having a cylindrical extension having one endcommunicating with the crank case and the other end being open towardthe sickle bar of the mowing machine, a partition` iXed Within thecylindrical portion and provided with a stuffing box, a slidingperforated disk within the cylindrical casing, a pitman member pivotallyconnected to the sliding disk and also connected to the crank wheel, apitman 'member fixed to the sliding disk and extended through thestufling boX in the partition, a second sliding member between thepartition and the end of the casing toward the sickle bar, and a thirdpitman member pivoted to said sliding member and designed to bepivotally connected to a sickle bar, said crank case and the cylindricalcasing bein designed to hold a quantity of Oil and sai perforatedsliding support being designed to permit the oil to flow freely throughit, for the purposes stated,

6. In a mowing machine, the combination of a crank shaft, a crank wheelthereon, a reciprocating cutter or sickle bar, a pitman operativelyconnected at one -end with the sickle bar, means for slidably supportingthe other end of said pitman, and a second pitman operatively connectedwith the crankl wheel and the first pitman.

Des Moines, Iowa, December 6, 1911.

ADIS MORRIS.

Witnesses: A

M. WALLACE, Bessin E. DEAL.

